Answer:
x-8
Step-by-step explanation:
You add the -7 and -1 and then put the x in front of your answer.
Answer:
The Video recorders are inferior goods.
Step-by-step explanation:
As 
where;
The price of the recorders films are increasing by a term 1.07 which gives that the Price is increasing by a little. Also adding the Price of video recorder is increasing by a factor 2.1 and the Revenue or income is increasing by a term 5 (Which is high) so, revenue and price are increasing leaving the quality of the voice recorder decreasing by a large margin for maintaining the balance.
As

So, in conclusion the quality decreases and thus the video recorders are inferior goods.
Answer:
(a) draw the graph using these coordinates :
(0,-1) and (3,1)
(b) x = 3
Answer:
C) Area of Triangle is 102 Square Units
Answer: 50
Step-by-step explanation:
3(50)-14=136